GetRootCrd.3
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- '"
- '" Copyright (c) 1990 The Regents of the University of California.
- '" Copyright (c) 1994-1996 Sun Microsystems, Inc.
- '"
- '" See the file "license.terms" for information on usage and redistribution
- '" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- '"
- '" RCS: @(#) $Id: GetRootCrd.3,v 1.2 1998/09/14 18:22:51 stanton Exp $
- '"
- .so man.macros
- .TH Tk_GetRootCoords 3 "" Tk "Tk Library Procedures"
- .BS
- .SH NAME
- Tk_GetRootCoords - Compute root-window coordinates of window
- .SH SYNOPSIS
- .nf
- fB#include <tk.h>fR
- .sp
- fBTk_GetRootCoordsfR(fItkwin, xPtr, yPtrfR)
- .SH ARGUMENTS
- .AS Tk_Window tkwin
- .AP Tk_Window tkwin in
- Token for window.
- .AP int *xPtr out
- Pointer to location in which to store root-window x-coordinate
- corresponding to left edge of fItkwinfR's border.
- .AP int *yPtr out
- Pointer to location in which to store root-window y-coordinate
- corresponding to top edge of fItkwinfR's border.
- .BE
- .SH DESCRIPTION
- .PP
- This procedure scans through the structural information maintained
- by Tk to compute the root-window coordinates corresponding to
- the upper-left corner of fItkwinfR's border. If fItkwinfR has
- no border, then fBTk_GetRootCoordsfR returns the root-window
- coordinates corresponding to location (0,0) in fItkwinfR.
- fBTk_GetRootCoordsfR is relatively efficient, since it doesn't have to
- communicate with the X server.
- .SH KEYWORDS
- coordinates, root window